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Stabilizing the Garnet Solid-Electrolyte/Polysulfide Interface in Li–S Batteries

Journal Article · · Chemistry of Materials
 [1];  [2];  [2];  [3];  [3];  [3];  [2];  [3];  [3];  [3];  [3];  [2];  [2];  [2]
  1. Univ. of Maryland, College Park, MD (United States). Maryland Energy Innovation Inst. Dept. of Materials Science and Engineering; University of Maryland
  2. Univ. of Maryland, College Park, MD (United States). Maryland Energy Innovation Inst. Dept. of Materials Science and Engineering
  3. Univ. of Maryland, College Park, MD (United States). Dept. of Materials Science and Engineering
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Chemical and physical short circuits are the main challenges faced by lithium batteries which compromise battery performance and safety. At the cathode, solvation of active cathode materials and shuttling of unwanted chemical species in the liquid electrolyte result in “chemical short circuits”, which deteriorate the Li metal electrode and limit the deployment of new cathode materials, such as high voltage cathodes, sulfur, and air/O2. In Li–S batteries, the repeated shuttling of polysulfides between electrodes constantly corrodes the Li metal anode and the loss of active material will result in low Coulombic efficiency. At the anode, Li dendrite penetration through the separator causes internal electronic, or “physical”, short circuits. Finally, several strategies have been reported to prevent chemical and physical short circuits by using a cathode host, small sulfur molecules, modified separators, or electrolyte additives to alleviate sulfur materials diffusion and shuttling, and finding ways to delay, confine, or block Li dendrites to extend the cycling lifetime and avoid thermal runaway in lithium metal batteries.
Research Organization:
Univ. of Maryland, College Park, MD (United States)
Sponsoring Organization:
National Aeronautics and Space Administration (NASA) (United States); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Grant/Contract Number:
EE0006860
OSTI ID:
1433809
Journal Information:
Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 19 Vol. 29; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (11)

Development and Challenges of Functional Electrolytes for High-Performance Lithium-Sulfur Batteries journal July 2018
Associating and Tuning Sodium and Oxygen Mixed‐Ion Conduction in Niobium‐Based Perovskites journal January 2020
Sulfur Redox Reactions at Working Interfaces in Lithium-Sulfur Batteries: A Perspective journal January 2019
Thick Electrode Batteries: Principles, Opportunities, and Challenges journal July 2019
Electrocatalysis in Lithium Sulfur Batteries under Lean Electrolyte Conditions journal October 2018
Electrocatalysis in Lithium Sulfur Batteries under Lean Electrolyte Conditions journal October 2018
Recent Progress in All-Solid-State Lithium−Sulfur Batteries Using High Li-Ion Conductive Solid Electrolytes journal February 2019
Sur-/interfacial regulation in all-solid-state rechargeable Li-ion batteries based on inorganic solid-state electrolytes: advances and perspectives journal January 2019
Recent advances in the interface engineering of solid-state Li-ion batteries with artificial buffer layers: challenges, materials, construction, and characterization journal January 2019
A bird's-eye view of Li-stuffed garnet-type Li 7 La 3 Zr 2 O 12 ceramic electrolytes for advanced all-solid-state Li batteries journal January 2019
2D hybrid interlayer of electrochemically exfoliated graphene and Co(OH) 2 nanosheet as a bi-functionalized polysulfide barrier for high-performance lithium–sulfur batteries journal November 2018

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